摘要
目的用简便、经济的方法制备性能良好、兼具抗静电性能与防伪性能的标签复合薄膜。方法以木质纤维为原料,在采用自然干燥法的基础上,外加磁场制备定向纳米四氧化三铁粒子(nano-Fe_3O_4)/纤维素纳米晶体(CNCs)抗静电彩虹防伪复合薄膜。综合分析复合薄膜四探针电导率、偏光显微镜、扫描电镜、衰减全反射傅里叶红外光谱、X射线衍射光谱等的测试结果。结果 nano-Fe_3O_4的加入及磁场定向可在不影响CNCs胆甾型液晶自组装形成彩色图案的情况下,提高复合膜导电性,且复合膜发挥最佳效果时,CNCs与nano-Fe_3O_4最佳质量比为20∶1。结论该标签膜兼具抗静电性能与防伪性能,具有一定的包装防伪应用价值。
The work aims to prepare the label composite film with good properties, anti-electrostatic performance and anti-counterfeiting performance in a convenient and economic way.With wood fiber as raw material, based on natural seasoning and magnetic field, the directional ferroferric oxide nano-particles（nano-Fe3O4）/nanocrystaline cellulose（CNCs） anti-electrostatic iridescence anti-counterfeiting composite film was prepared.Composite film four-probe specific conductance, polarizing microscope, scanning electron microscope, attenuated total reflection Fourier infrared spectrum and X-ray diffraction spectrum, etc.were comprehensively analyzed.The testing showed that adding nano-Fe3O4 and magnetic field orientation could improve the film＇s conductivity without preventing CNCs cholesteric liquid crystal self-assembly from forming colorful pattern, besides, the best mass ratio of CNCs and Fe3O4 was 20∶1 when the composite film had the best effect.This label film has anti-electrostatic performance and anti-counterfeiting performance, and it has certain application value for packaging anti-counterfeiting.
作者
万轩
张亚运
孙誉飞
李大纲
WAN Xuan ZHANG Ya-yun SUN Yu-fei LI Da-gang(Nanjing Forestry University, Nanj ing 210037, China)
出处
《包装工程》
CAS
北大核心
2017年第9期53-58,共6页
Packaging Engineering
基金
国家自然科学基金(31670555)
江苏省大学生创新创业训练计划(201610298027Z)
关键词
纤维素纳米晶体
胆甾型液晶
标签防伪技术
抗静电复合材料
纳米FE3O4粒子
nanocrystaline cellulose
cholesteric liquid crystalline
anti-counterfeiting labels
anti-electrostatic composite materials
nano-Fe3O4 particles
